Rolling-mill feed-table.



No. 735,391. PATENTL AUG. 4, 1903. J.KENNEDY.

' ROLLING MILL FEED TABLE.

APPLICATION FILED NOV. 2,-1901.

N0 MODEL. Z SHEETS-SHEET 1.

.Tn: NORRIS PEYEHS co. Pwmouma. wnsnmsron, n. cy

PATENTED AUG. 4,-1908. J. KENNEDY. .ROLLING MILL FEED TABLE.

APPLIGATION FILED NOV. 2. 1901.

2 SHEETS-SHEET 2.

NO MODEL INVEN'I'OR wmwwm WITNESSES Patented August 4, 1903- PATENTOFFICE.

JULIAN KENNEDY, OF PITTSBURG, PENNSYLVANIA.

ROLLING-MILL FEED-TABLE.

SPECIFICATION forming part of Letters Patent No. 735,391, dated August4,1903 Application filed November 2, 1901. Serial No. 80.899. (No model.)

I broken away and on a larger scale; and Fig. 3 is a verticalcross'section on the line III III of Fig. 2.

My invention relates to the class of feedtables having positively-drivenrollers, and is designed to provide a new and improved worm drivingmechanism therefor and to cheapen and improve their construction.

In the drawings I show a tilting table having side frames 2 2, eachframe being formed,

of castings with flanged end portions 3, se-. cured together by bolts 4.The side frame members are secured together by transverse bolts 5beneath the rollers, and the table is pivoted on trunnious at 6, asshown in Fig. 1. The table may be tilted by any desirable mechanism,such as the bell-crank and link mechanism shown at 7, and connected to asuitable power-cylinder. One of the side frames is provided along itstop with a longitudinal chamber or box-8, which is preferably castintegral with the side frames and is arranged to receive thelongitudinal worm-shaft 9 and the worm-wheelslO, intermeshing with theworms and carried by' the projecting shafts 11 of the table-rollers 12.The worm shaft may be made in separate sections, which worm-shaft.

are secured end to end, as shown at 13, andat any desirable intervalsbetween the separated worms are placed the bearings for the Thesebearings are formed and held in the following manner: The lower portionsof the inner sides of the box or chamber are formed with a series ofintegral projecting pads or surfaces 14, and the casting is then put ina planer and the inner facesof the pads are all planed ofi so as tobring all .the pads along one side with the same plane with accuracy.The bearing-brass consists of two parts 15, each of semicylindrical formwith a fiat side face 16, having a vertical rib in the chamber.

17 and with a lower foot portion 18. The face of one of the halves ofeach brass is inclined, while the other is vertical, and when the shaftis placed in a chamber the brasses are slipped together around it. Aspacingblock 19, having a recess 20, is slipped between the flat sideface of one half of the brass and one of the pads, while the wedgeblock21 is slipped between the other half of the brass having a rear inclinedface and the other pad. The bearing is thus'supported in position andheld against lateral movement, while allowing longitudinal movement Asthe brasses with the spacing and wedge blocks are made in a jig, so asto be duplicates of each other, the mere act of assembling the bearingsalines the shaft and does away-with the necessity for the tediousalining of the shaft as heretofore carried out. To remove any of thebearings,

all that is necessary is to remove the top cover 22 of the chamber orbox, screw an eyebolt into the screw-threaded hole 23 in the wedge, pullout the wedge, and then draw out the spacing-block on the other side ina similar manner and remove the brasses.

The bearings 24 for the roller-journals are formed within sideprojecting bosses 25 of the side frame, as shown in Fig. 3.

To take up the end thrust on the wormshaft, I preferably provide athrust-bearing for its end portion which projects beyond the box 8, thisthrust-bearing being contained in the chambers indicated at 26 and 27 inFig. 2, which shows the surrounding cases for such hearing. The shaftprojects through the bearing and is coupled by the ordinary device 28 toan electric motor 29; mounted on the rearwardly-projecting bracket 30 ofthe table.

In the operation of the device the electric motor is actuated in eitherdirection to drive the feed-rollers in either direction through theintermediate worm-gearing. It will be noted that the gears are all belowthe level of the feed-rollers, as is also the cover-plate for thegear-casing. All side obstructions at the ends of the rollers are thusremoved, allowing the table to carry plates wider than the rollers orallowing the plates to be drawn laterally.

In using the table oil is supplied to the gear- I to prevent the oilfrom flowing quickly to one of the cases in the tilting of the table. It

will be noted that the Worm-shaft bearings are floating and can move,while at the same time holding the shaft laterally in place.

The advantages of the invention will be apparent from the abovedescription.

Many variations may be made in the form and arrangement of theworm-shaft and its I bearings and in the driving connections, &c.,

Without departing from my invention.

Iclaim- ,1. 'A rolling-mill feed-table having a series of rollers, acase extending along one side of the table and containing a worm-shaftengag- 1ng worm-wheels upon the projecting shaft of the rollers, andbearings made in halves extending below the shafts and held againstlateral movement by the sides of the case, and capable of longitudinalmovement in the case; substantially as described.

2. A rolling-mill feed-table having a series of rollers a case extendingalong one side of the table and containing a worm-shaft engagingworm-wheels upon the projecting shafts of the rollers, said case havinginwardly-pro jecting pad portions arranged in pairs, and bearings madein halves and held against lateral movement between the pads, saidbearings beingallowed to move longitudinally of the case; substantiallyas described.

3. A rolling-mill feed-table having a series of rollers, a caseextending along one side of the table and containing a worm-shaftengaging worm-wheels upon projecting shafts of the rollers, said casehaving inwardly-projecting pad portions arranged in pairs, and bearingsmade in halves and held between the pads by spacing blocks, saidbearings meeting below the shaft; substantially as described.

4. A rolling-mill feed-table having a series of rollers with projectingshafts at their ends supported in bearings in a case extending along oneside of the table and having. wormwheels within the case, a worm-shaftbelow the worm-wheels, and endwise-movable bearings for the shaft atdifferent points in its length arranged to hold the shaft against lateral movement and support it; substantially as described.

5. In a rolling-mill feed-table, the combination withalongitudinally-extending casehaving opposite pads therein, of bearingsmade in semicylindrical halves held between the pads by spacing-blocks,at least one of the blocks having a projection and recess engaging withone of the half-bearings; substantially as described.

In testimony whereof I have hereunto set my hand.

. JULIAN KENNEDY.

Witnesses:

H. M. OORWIN, L. M. REDMAN.

